Patent US3566718A successfully refreshed from Google Patents.
US3566718A
Expired / Lapsed
US
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Vehicle transmission control mechanism
Assignee: Individual
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Filing: 1969-04-08
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Granted: 1971-03-02
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Expires: 1989-04-08
Abstract
Abstract CONTROL MECHANISM FOR A VEHICLE AUTOMATIC TRANSMISSION HAVING A FLUID PRESSURE RESPONSIVE MODULATOR THEREFOR INCLUDES A VALVE HAVING A MOVABLE ELEMENT FOR OPENING A PORT FOR POSITIVELY CONTROLLING PRESSURE UPON THE MODULATOR, MOVED RESPONSIVE TO VARIATION IN INTAKE MANIFOLD PRESSURE WHEN ENGINE OPERATION CALLS FOR AN UP CHANGE.
Inventors
- 👤 Julian H Wightman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:08
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/14; F16H59/26; F16H59/30; B; B60; B60K; B60K17/00; B60K17/04; B60K17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |